| 姓名 | 張凱傑(Kai-Chieh Chang) | 電子郵件信箱 | s9311612@mail.cyut.edu.tw | |
| 畢業系所 | 營建工程系碩士班(Department and Graduate Institute of Constrction Engineering) | |||
| 畢業學位 | 碩士(Master) | 畢業時期 | 94學年第2學期 | |
| 論文名稱(中) | 利用監測系統建立朝陽後山砂頁岩邊坡預警值之研究 | |||
| 論文名稱(英) | Monitoring System for Assessing Sandstone and Shale Slope Stability on the Chaoyang University of Technology | |||
| 檔案 |
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論文使用權限 | 校內外都兩年後公開 | |
| 論文語文/頁數 | 中文/81 | |||
| 摘要(中) | 朝陽科技大學位於台灣西部麓山丘陵地帶邊緣，蘊含地下水，地形為一順、逆向坡交互之單面山地形，地質為卓蘭層砂頁岩互層。由於增建學校校舍之需，鄰近運動場之活動區域，必須考量學生活動安全顧慮，因此埋設傾斜管、水位計、沈陷鈑等監測儀器，利用監測儀器定期監測；本研究利用該監測系統建立朝陽後山砂頁岩邊坡預警值。 本研究利用回饋分析求得朝陽後山砂頁岩邊坡滑動時之現地地質參數c、 值，利用有限差分軟體FLAC進行其穩定性數值模擬，包含平時及暴雨。比較監測點觀測數值模擬與現地監測值之結果，以驗證地質參數c、 值與數值模擬之合理性。最後再利用FLAC強度折減法模擬現地邊坡(FS接近及小於1時)，依F.S與傾斜管位移量關係，建立朝陽後山砂頁岩邊坡預警值。 本研究結果顯示：(1) 回饋分析所求得之現地地質參數，第一層表土層c=0及 =25°；滑動面間c=23KN/m2及 =27°；第二層風化砂頁岩c=39.24KN/m2及 =29°。(2) 現地砂頁岩邊坡利用FLAC 進行穩定性分析，於平時狀態屬穩定狀況；於暴雨狀態時為表土層下之弱面處滑動及表土崩塌。(3) 利用FLAC 模擬砂頁岩邊坡F.S接近及小於1時之邊坡傾斜管位移量，並建立現地邊坡F.S與傾斜管位移量之關係圖。(4)建立朝陽後山砂頁岩邊坡預警值，包含注意值0.65-1.0mm/日，警戒值1.0-1.35mm/日，行動值1.35mm/日以上。 關鍵字：砂頁岩互層，回饋分析，FLAC，監測系統，預警值 | |||
| 摘要(英) | Chaoyang University
of Technology is located at Taiwan western foothill where features in
its high ground water.The terrain geology formed by Jhuolan sandstone
and shale interbedding formation. Before the construction of new school
building, the students’ safety must be taken into consideration in the
nearby area of sports field. Therefore, we adopted monitoring equipments
such as inclinometer, water level indicator, settlement surveying point,
etc. for regular monitoring. This study established the monitoring alern
value on sandstone and shale slope of Chaoyang University of Technology
according to this monitoring system. The study use back analysis to obtain c、 value of geological parameters of sandstone and shale slope in the site. Finite difference FLAC software is adopted to do numerical simulation of slope stability under the states of static and storm. The results of numerical analysis and monitoring values of the sandstone and shale slope in the Chaoyang University of Technology are compared to ensure their realistic. The shear strength parameters of the soil were reduced by a reduction factor and slope response was calculated. The relationship between factor safety values near 1 and the response of sandstone and shale slope on the Chaoyang University of Technology was then established, and the figures were expressed based on the numerical results. Finally, the monitor alert data were recommended in this study. This study reaches the following conclusions: (1)The site geological parameters obtained from back analysis that found c=0 and =25° in the first subsoil layer, c=23KN/m2 and =27° on sliding surface, c=39.24KN/m2 and =29° in the second weather sandstone and shale layer. (2) The FLAC software is adopted for stability analysis on sandstone and shale slope. We found that it is stable under the state of static.The collapse of subsoil and weakness sliding surface under the state of heavy storm. (3) The FLAC software is adopted to simulate the relationahip between factor safety values near 1 and the response of sandstone and shale slope, and the figures were then established. (4) The study has established monitoring alern value of sandstone and shale slope of Chaoyang University of Technology which are including attention value 0.65-1.0 mm/day, warning value 1.0-1.35 mm/day，action value ＞ 1.35 mm/day. Keyword: sandstone and shale, back analysis, FLAC,monitoring system, monitoring alern vale | |||
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